How do I know that the e-mark is connected to my mobile device?

When the connection between e-mark and mobile App is established, a blue LED shines on the right side in the back of the e-mark. A USB connection between your e-mark and PC is indicated by a pink LED on the same position. In the App you will also find information to the quality of connection and whether or not the Wifi connection could have been established.
 
 
 
 
If your e-mark is connected to your PC via USB cable, a pink LED shines on the right back side.